ABSTRACT
OBJECTIVE@#To study the comprehensive impact of scar and maxillary expansion combined with protraction on the development of maxilla with cleft lip and palate after repair operation.@*METHODS@#In the original finite element model of the maxilla with cleft palate, a finite element model of the maxilla with cleft lip and palate was established by using Boolean operation in ANSYS. Scar force after cleft lip and palate repair and maxillary expansion force combined with protraction were added simultaneously to process the stress analysis.@*RESULTS@#Maxillary deformation occurred in the three-dimensional direction. The comparison of displacements was as follows: X-axis>Z-axis>Y-axis.@*CONCLUSIONS@#Maxillary growth is significantly inhibited in the three-dimensional direction under the comprehensive impact of scar and maxillary expansion combined with protraction after repair operation, especially transverse and sagittal growth.
Subject(s)
Humans , Cicatrix/pathology , Cleft Lip/surgery , Cleft Palate/surgery , Finite Element Analysis , Maxilla/surgery , Palatal Expansion TechniqueABSTRACT
<p><b>OBJECTIVE</b>To study, the high polar media-water extraction process of Herba epimedii with the microwave technology.</p><p><b>METHOD</b>The single parameters of extraction process was investigated with dry extract yield and extraction efficiency of icariin as content index.</p><p><b>RESULT</b>Through studying the single parameter, the optimal conditions are as follows: 70% ethanol as wetting solvent, volume of solvent to weight of material equal to 6:1 in wetting, 30 min wetting time, 2.5 min microwave irradiation time, volume of solvent to weight of material equal to 50:1 in extraction process, 10 min microwave-assisted extraction time.</p><p><b>CONCLUSION</b>Compared with conventional methods, microwave-assisted extraction (MAE) after Microwave Pretreament (MP) of raw material was higher extraction efficiency and time-saving.</p>